000 00272nam a2200109Ia 4500
008 200806s9999 xx 000 0 und d
082 _a530
_bREL
245 0 _aRELATIVITY today
260 _a[S.I]
_bBritish broadcasting corporation
_c1963
300 _a31 p.
942 _cPRP
999 _c146710
_d146709